Actually, folks, 32-pin SIMMs DO exist. I held four of them in my own little hands once. We ordered four modules for a PC upgrade, and that's what we got from our vendor. As I was snapping them in, I noticed that the SIMMs had an extra pad on either side of the socket that didn't have a corresponding lead.
Things that make you go "Hmmm..."
So, we call the vendor back, and the reply was "Oops! That's where they went... You shouldn't have those - we'll send a pickup for them, and get the regular ones out to you."
We never did learn what they were for (I'm guessing some kind of server or printer, as the 30-pin can have a maximum of 16Mx9, a 32-pin could give you 256Mx9).
If those chips EACH have 41256 printed, then they're 256Kx8, but double-check to see if there aren't any 44256s on 'em. They may have set them up differently to get a 1Mx8 layout.
banzai